{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In ESIP-5, how do you define testing whether a transaction is valid?","a":"In ESIP-5 (Ethereum Smart Contract Programming Standard), defining whether a transaction is valid can be approached from the following aspects:\\n\\n1. Whether the transaction has legitimate input data: Ensure that the parameters and data in the transaction comply with the expected format and range, such as contract address, amount, fees, etc.\\n\\n2. Whether the transaction conforms to the contract constraints: Check whether the transaction meets the constraints in the smart contract, such as permissions, sufficient balance, transaction frequency limits, etc.\\n\\n3. Whether the transaction is called correctly in the contract: Ensure that the function called in the transaction meets expectations,  and that the function signature matches..."}]}],"pr":"9a397e4002d971b80e5e1ea7e51293b68d49f2a7784c19b69fa45696e635c0a5"}